;;; repl.lisp
;;;
;;; Copyright (C) 2008-2010 Alessio Stalla
;;;
;;; This program is free software; you can redistribute it and/or
;;; modify it under the terms of the GNU General Public License
;;; as published by the Free Software Foundation; either version 2
;;; of the License, or (at your option) any later version.
;;;
;;; This program is distributed in the hope that it will be useful,
;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with this program; if not, write to the Free Software
;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
;;;
;;; As a special exception, the copyright holders of this library give you
;;; permission to link this library with independent modules to produce an
;;; executable, regardless of the license terms of these independent
;;; modules, and to copy and distribute the resulting executable under
;;; terms of your choice, provided that you also meet, for each linked
;;; independent module, the terms and conditions of the license of that
;;; module.  An independent module is a module which is not derived from
;;; or based on this library.  If you modify this library, you may extend
;;; this exception to your version of the library, but you are not
;;; obligated to do so.  If you do not wish to do so, delete this
;;; exception statement from your version.


(in-package :snow)

;;REPL
(defun make-gui-repl (&key dispose-on-close environment)
  "Creates a component that allows to interact with the Lisp system by typing text in a text area and receiving output in the same text area."
  (let ((text-area (new "javax.swing.JTextArea"))
	(repl-doc (new "snow.swing.ConsoleDocument"
		       (compile nil
				`(lambda ()
				   (with-snow-dynamic-environment
				     (let (,@environment)
				       (top-level::top-level-loop))))))))
    (setf (widget-property text-area :document) repl-doc)
    (invoke "setupTextComponent" repl-doc text-area)
    (when dispose-on-close
      (invoke "disposeOnClose" repl-doc dispose-on-close))
    text-area))

(defun dispose-gui-repl (repl)
  "Performs operations necessary to dispose of a repl's allocated resources."
  (invoke "dispose" (widget-property repl :document)))

(define-widget gui-repl (dispose-on-close environment) make-gui-repl)

